/*
 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package std.core;

export const KEY_NOT_FOUND: int = -1;

// Range is [startIndex, endIndex), i.e. startIndex included and endIndex is excluded
function checkRange(arrLen: int, startIndex: int, endIndex: int): boolean {
    // Since mostly everywhere for loop is used from startIndex till endIndex exclusive,
    // startIndex <= endIndex is used to cover empty array case
    return ((0 <= startIndex) && (startIndex <= endIndex) && (endIndex <= arrLen));
}
